A Unitized Substation (USS) is a nutshell product comprising of various substation equipments, housed inside a metal enclosure, such as a step down transformer, a Vacuum Circuit Breaker (VCB) or a Ring Main Unit (RMU) on High Voltage (HV) side and Low Voltage (LV) distribution panel in LV side compartment. The product is highly reliable, safe, user friendly and ready to use with appealing aesthetics.